1,893 research outputs found

    On explicit results at the intersection of the Z_2 and Z_4 orbifold subvarieties in K3 moduli space

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    We examine the recently found point of intersection between the Z_2 and Z_4 orbifold subvarieties in the K3 moduli space more closely. First we give an explicit identification of the coordinates of the respective Z_2 and Z_4 orbifold theories at this point. Secondly we construct the explicit identification of conformal field theories at this point and show the orthogonality of the two subvarieties.Comment: Latex, 23 page

    Laser Doppler velocimeter aerial spray measurements

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    An experimental research program for measuring the location, spatial extent, and relative concentration of airborne spray clouds generated by agricultural aircraft is described. The measurements were conducted with a ground-based laser Doppler velocimeter. The remote sensing instrumentation, experimental tests, and the results of the flight tests are discussed. The cross section of the aerial spray cloud and the observed location, extent, and relative concentration of the airborne particulates are presented. It is feasible to use a mobile laser Doppler velocimeter to track and monitor the transport and dispersion of aerial spray generated by an agricultural aircraft

    Three Models of Legal Ethics

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    This article presents a picture of each of the three theoretical models—autonomy, socialist, and deontological—and indicates how they differ from one another in their application to some aspects of attorney-client confidentiality, one of the most hotly debated topics of professional ethics

    Three Models of Legal Ethics

    Get PDF
    This article presents a picture of each of the three theoretical models—autonomy, socialist, and deontological—and indicates how they differ from one another in their application to some aspects of attorney-client confidentiality, one of the most hotly debated topics of professional ethics

    The impact of interactive corporate social responsibility communication on corporate reputation

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    __Abstract__ Companies increasingly communicate about corporate social responsibility (CSR) through interactive online media. We examine whether using such media is beneficial to a company's reputation. We conducted an online experiment to examine the impacts of interactivity in CSR messages on corporate reputation and word-of-mouth intentions. Our findings suggest that an increase in perceived interactivity leads to higher message credibility and stronger feelings of identification with the company, which also boost corporate reputation and word-of-mouth. This result implies that using interactive channels to communicate about CSR can improve corporate reputation. Our results also show that the detrimental impacts of negative user evaluations on corporate reputation are much higher than the favorable impacts of positive evaluations. This finding suggests that, despite the effectiveness of interactive communication channels, firms need to carefully monitor these channels

    Ultrasound mapping of lymph node and subcutaneous metastases in patients with cutaneous melanoma: Results of a prospective multicenter study

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    Background: Ultrasound (sonography, B-mode sonography, ultrasonography) examination improves the sensitivity in more than 25% compared to the clinical palpation, especially after surgery on the regional lymph node area. Objective: To evaluate the distribution of metastases during follow-up in the draining lymph node areas from the scar of primary to regional lymph nodes ( head and neck, supraclavicular, axilla, infraclavicular, groin) in patients with cutaneous melanoma with or without sentinel lymph node biopsy (SLNB) or former elective or consecutive complete lymph node dissection in case of positive sentinel lymph node (CLND). Methods: Prospective multicenter study of the Departments of Dermatology of the Universities of Homburg/Saar, Tubingen and Munich (Germany) in which the distribution of lymph node and subcutaneous metastases were mapped from the scar of primary to the lymphatic drainage region in 53 melanoma patients ( 23 women, 30 men; median age: 64 years; median tumor thickness: 1.99 mm) with known primary, visible lymph nodes or subcutaneous metastases proven by ultrasound and histopathology during the follow-up. Results: Especially in the axilla, infraclavicular region and groin the metastases were not limited to the anatomic lymph node regions. In 5 patients (9.4%) ( 4 of them were in stage IV) lymph node metastases were not located in the corresponding lymph node area. 32 patients without former SLNB had a time range between melanoma excision and lymph node metastases of 31 months ( median), 21 patients with SLNB had 18 months ( p < 0.005). In 11 patients with positive SLNB the time range was 17 months, in 10 patients with negative SLNB 21 months ( p < 0.005); in 32 patients with CLND the time range was 31 m< 0.005). In thinner melanomas lymph node metastases occurred later ( p < 0.05). Conclusions: After surgery of cutaneous melanoma, SLNB and CLND the lymphatic drainage can show significant changes which should be considered in clinical and ultrasound follow-up examinations. Especially for high-risk melanoma patients follow-up examinations should be performed at intervals of 3 months in the first years. Patients at stage IV should be examined in all regional lymph node areas clinically and by ultrasound. Copyright (c) 2006 S. Karger AG, Basel

    The Emergence of Entrepreneurship in Cuba: What Can We Learn

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    Entrepreneurs around the world would agree that being an entrepreneur provides a gateway to flexibility and freedom and it requires an enormous amount of responsibility and commitment. When Raul Castro announced that Cubans could officially run their own business, it created a means for Cuba’s citizens to have choices. This article provides an overview of Cuba’s emerging entrepreneurs and how their endeavors are stimulating the formation of a middle class. Driven by economic liberalization, the Cuban entrepreneur and Cuban consumer are able to aspire for goods and services that were not attainable between 1959 and 2008. This study provides an overview about the motivating and personal characteristics of Cuba’s entrepreneurs. The importance of this group on the formation of Cuba’s middle class is addressed. Our findings indicate what can be done to provide continued support to this group so that the middle class of Cuba continues to grow
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